REDUCING THE RISK OF PHYLLOXERA TRANSFER ON VITICULTURAL WASTE AND MACHINERY
Radicolae grape phylloxera feed on the roots of grapevines and the first instar life-stage can be found during the spring and summer above-ground on the soil surface or in the grapevine canopy and on ripening fruit. Therefore there is a significant risk of phylloxera transfer, if infested machinery or grape products are not effectively disinfested prior to removal from an infested vineyard. In Australia 80% of vineyards are planted on non-resistant ungrafted Vitis vinifera L., hence the introduction of the pest into these vineyards could have economic consequences for the industry. To protect uninfested regions quarantine restrictions exist for the movement of machinery and winery waste from phylloxera-infested regions. Temperature and humidity is known to be one of the factors, which can impact on phylloxera survival and development. In order to validate the effectiveness of quarantine protocols for heat treatment of machinery and winery waste products (grape pomace or marc) trials were conducted under controlled laboratory, and commercial winery, conditions. Preliminary data on survival of phylloxera under these conditions are described.
Korosi, G.A., Trethowan, C.J. and Powell, K.S. (2009). REDUCING THE RISK OF PHYLLOXERA TRANSFER ON VITICULTURAL WASTE AND MACHINERY. Acta Hortic. 816, 53-62
winery waste, phylloxera transfer, quarantine protocols, machinery